常見例句雙語例句Except morbidity number rapid increase, morbidity crowd displays the become younger in average age trend also gradually.除了發(fā)病人數(shù)急劇增加外，發(fā)病人群也日益呈現(xiàn)出年輕化趨勢(shì)。blog.sina.com.cn 返回 become younger in average age